/*
 * Created on Feb 23, 2007
 *
 * Copyright (c) 2006-2007 P.J.Leonard
 * 
 * http://www.frinika.com
 * 
 * This file is part of Frinika.
 * 
 * Frinika is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.

 * Frinika is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with Frinika; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package uk.ac.bath.audio;

import uk.org.toot.audio.core.AudioBuffer;
import uk.org.toot.audio.core.AudioProcess;

/**
 * A simple AudioProcess that looks for the peak value.
 * It is reset when yoiu call getPeak()
 * @author pjl
 *
 */

public class AudioPeakMonitor implements AudioProcess {

	float monitVal = 0.0f;

	public float getPeak() {
		float t = monitVal;
		monitVal = 0.0f;
		return t;
	}

	public void open() {
	}

	public int processAudio(AudioBuffer buffer) {
		int n = buffer.getSampleCount();
		int nch = buffer.getChannelCount();		
		for (int ch=0;ch<nch;ch++) {
			float buff [] = buffer.getChannel(ch);
			for(int i=0;i<n;i++) {
				if (Math.abs(buff[i]) > monitVal) monitVal=Math.abs(buff[i]);	
			}
		}
		return AUDIO_OK;
	}

	public void close() {
	}

}
